Compare

Comparing phone providers? Compare who does the work.

Every provider can sell you a phone line. The difference is who builds the call flow, who sets up the phones, who owns the network and who changes it next month.

Book a walk-through Total what you pay today

The field

Four ways to buy a phone system. And ours.

Most providers fall into one of four camps. Here is who does the work in each, row by row.

Question	The online signup Ooma RingCentral Nextiva	The internet-provider bundle Optimum Verizon	The Microsoft add-on Teams Phone	The phone apps Phone apps	SLINC
Who builds the call flow	You, in a portal	You, in a portal (or their onboarding call teaches you)	Your IT admin	You	We do, with you, per location
Who sets up the phones	You, out of the box	Their installer, for an installation fee	Your IT admin	Mostly apps; desk phone support varies by app	We do, built for each person
Who owns the network	You (their terms or setup guides put it on you)	They sell the circuit, not your switches or Wi-Fi	Your IT admin	You	We do
Who builds the AI	You, from your website	No AI receptionist on their hosted-voice pages	Separate Microsoft licenses	Varies by app; often a paid add-on or built by you	We write and run it
How changes happen	You, in the portal	You, in a portal	Your IT admin	You	A call or an email; we make it

The online signup

Ooma RingCentral Nextiva

Who builds the call flow: You, in a portal
Who sets up the phones: You, out of the box
Who owns the network: You (their terms or setup guides put it on you)
Who builds the AI: You, from your website
How changes happen: You, in the portal

The internet-provider bundle

Optimum Verizon

Who builds the call flow: You, in a portal (or their onboarding call teaches you)
Who sets up the phones: Their installer, for an installation fee
Who owns the network: They sell the circuit, not your switches or Wi-Fi
Who builds the AI: No AI receptionist on their hosted-voice pages
How changes happen: You, in a portal

The Microsoft add-on

Teams Phone

Who builds the call flow: Your IT admin
Who sets up the phones: Your IT admin
Who owns the network: Your IT admin
Who builds the AI: Separate Microsoft licenses
How changes happen: Your IT admin

The phone apps

Phone apps

Who builds the call flow: You
Who sets up the phones: Mostly apps; desk phone support varies by app
Who owns the network: You
Who builds the AI: Varies by app; often a paid add-on or built by you
How changes happen: You

SLINC

Who builds the call flow: We do, with you, per location
Who sets up the phones: We do, built for each person
Who owns the network: We do
Who builds the AI: We write and run it
How changes happen: A call or an email; we make it

Summaries; each provider page below compares one of them with us, row by row, with every fact linked to its source (the provider’s own pages or a public record), checked in October 2026.

Side by side

Pick the provider you were quoted.

The online signup SLINC vs Ooma Ooma ships phones and a portal login. We fit the system and run the network it rides on. Read the comparison The online signup SLINC vs RingCentral For under 20 licenses, RingCentral’s onboarding is self-guided. For us, the onboarding is the product. Read the comparison The online signup SLINC vs Nextiva Nextiva’s implementation guide relies on you for the network and the call-flow use cases. We do both. Read the comparison The internet-provider bundle SLINC vs Optimum Optimum sells a line and a portal. We build the system, on whichever circuit you run. Read the comparison The internet-provider bundle SLINC vs Verizon Verizon’s onboarding teaches your administrator the portal. We are the administrator. Read the comparison The Microsoft add-on SLINC vs Teams Phone Keep Teams for chat and meetings. Put the front desk on a phone system built for it. Read the comparison The phone apps SLINC vs Phone apps Fine for one person on a cell phone. A front desk needs a front desk. Read the comparison

Real cost

What you actually pay today.

The advertised seat price is one line on the bill. Put in every line you pay for, from your last statements, and see the month and the year.

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The phone service

Seats (people with a phone or a login)

Advertised price per seat, per month

Taxes and fees per seat, per month

Check your last bill.

Extra phone numbers (count)

Price per extra number, per month

Phone rentals, per month

Everything around it

AI receptionist or answering service, per month

IT support, per month

Network / Wi-Fi support, per month

Website and hosting, per month

Anything else (cameras, alarm lines), per month

Turn on JavaScript to total these figures.

Vendors counts each line that isn’t zero. The phone service, its numbers and its rentals count as one.

We don’t publish a price. We write one for your office after the walk-through, so bring this total and set it beside our design.

Book a walk-through Call (631) 446-2600

Switching

Your numbers come with you. We time the move around your current contract and cut over after you close.

How switching works

The method

Walk-through, written design, build, cutover, run. You approve one design; we do the rest.

How we fit a system

Ooma is a trademark of Ooma, Inc. SLINC is not affiliated with Ooma. RingCentral is a trademark of RingCentral, Inc. AT&T and Office@Hand are trademarks of AT&T Intellectual Property. SLINC is not affiliated with either. Nextiva and XBert are trademarks of Nextiva, Inc. SLINC is not affiliated with Nextiva. Optimum is a trademark of CSC Holdings, LLC. Spectrum is a trademark of Charter Communications, Inc. SLINC is not affiliated with either. Verizon is a trademark of Verizon Trademark Services LLC. SLINC is not affiliated with Verizon. Microsoft and Microsoft Teams are trademarks of Microsoft Corporation. SLINC is not affiliated with Microsoft. Google Voice is a trademark of Google LLC; Grasshopper, Quo and Dialpad are trademarks of their respective owners. SLINC is not affiliated with any of them. Facts on the comparison pages were checked in October 2026.

Start with a walk-through

Let’s walk your office.

We map how your calls actually flow, plus the network, computers and accounts, and hand you a written design of what we would build and run. Then you decide.

Book a walk-through Call (631) 446-2600

Hear our AI receptionist: (631) 237-9590